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Bioshock Infinite Projections

I was playing Bioshock Infinite and I noticed Elizabeth standing particularly still while she examined these file cabinets. Normally, she runs around all over the place and generally avoids you. I decided to try to see if I could make a wide-angle panorama out of screenshots.
Doing so was quite difficult because she's constantly swaying, breathing and looking around. I had to time the first 5 screenshots almost perfectly so that they would line up. There's a rhythm to her animation that I had to learn. The technique worked and I was able to make the initial tall, thin image without too much effort.
It lacked any context, so I added more screenshots from around her to make it better. That worked, too, if I took care to mask out the gun in each shot, and the UI. It went so well that I decided to go nuts and take 70 screenshots to cover the entire 360x180° sphere and make a panorama. From that, I could make all sorts of "photos".
I do this with real photos, so why not with screenshots? However, with a real camera it only takes 8 photos with my fisheye lens, not 70! I think the results are great, and I might try this again in a different location.

Fisheye #1

This is the very first image I made once I completed the panorama. I set the field of view to 141° x 91°, the specified field of view of the Sigma 15mm f/2.8 fisheye lens. However, that didn't result in a 3:2 image, so I cropped a little off of the width. I wanted to simulate a diagonal fisheye lens on a full-frame camera.

Ultrawide Rectilinear

This image simulates a rectilinear lens with an extremely wide field of view: 139° x 119°. It's almost impossibly wide. A rectilinear projection is what you're most used to. It's what ordinary cameras take, and it's the projection that video games use.
The ultrawide Canon 14mm lens only has a FOV of 104° x 81°. Rectilinear lenses have a much narrower FOV than fisheye ones for the same focal length because of the perspective correction being performed.

Equirectangular

This is an equirectangular projection. This image data is the source of all of the other images in this album. It's a full 360° x 180° panorama. It's everything you could possibly see from one point in space.
I used 70 screenshots to produce it! I probably didn't need to use quite that many, but I'd rather do overkill than not take enough. I also had to use so many because I needed a lot of overlap so I could mask out the gun and the UI from every screenshot.

Individual Images

Here's a screenshot from PTGui, the app I used to create panorama. This is the panorama editor, and I've selected a single screenshot. This gives you an idea of how much of the final image comes from one screenshot. You can see numbers at the center of every other screenshot. It's very haphazard looking. I basically spun in circles when taking them, and made no effort to line them up in columns.